reporter: class instructor former athletic director at boston college had his work cut out for him. what's the most basic question? >> who is the guy that lines up behind the guy that snaps it or centers it? i said that's our quarterback. >> reporter: he began with the basics. >> this is our goal line. we have four downs right? so a touchdown is six. a kick, an extra point is one. and we can either run it or pass it for two. questions on that? >> reporter: there was already some confusion. >> you have four downs. we have four downs. and then when you accomplish that it's called a first down. >> correct. before the ball is snapped why does the wide receiver do this little... does one team only have offensive players on the field while the other team only has defensive players? >> reporter: the one football fact they all knew... do you know who tom brady is married to? >> yes. giselle bundchen. >> reporter: you know, the super model. the class was oddly enough at the british consulate where suesy kitchen is the consul general. are a you football fan. >> yes but not your kind of footba